1、He did his homework in the classroom.（改为一般疑问句）(Did) he (do) his (in the classroom) ?2、The policeman caught the thief.(用now改写句子）The policeman (is catching) the thief (now).3、Turn right at the third crossing.(改为否定句）(Don`t turn) right (at the third crossing.)4、You can go to the supermarket by bike.(对画线部分提问） ...
